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James McIlhenny Riddleberger, M.D.

NPI 1114308277ActiveIndividual· Family Medicine· Portland, ME

Family Medicine (M.D.) in Portland, Maine, trained at Tulane University School of Medicine (class of 2015). Their prescriptions cost Medicare Part D more than their services did: $452,390 for 4,204 claims, against $15,816 paid for services in 2024.

Overview

NPI1114308277
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedJun 15, 2015
Last updated in NPPESOct 1, 2020
Certified by providerOct 1, 2020

Specialties and licenses

TaxonomyCodeLicenseState
Family Medicine Primary207Q00000XMD22299ME

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Nov 10, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 11, 2026No match—
New York OMIG · Nov 11, 2026No match—
Ohio Medicaid · Nov 11, 2026No match—
Pennsylvania Medicheck · Nov 11, 2026No match—
Washington HCA · Nov 11, 2026No match—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)Enrolled Practitioner - Family Practice (ME)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients109
Services billed529 across 64 procedure codes
Paid by Medicare$15,816

Part D prescriptions in 2024

Prescriptions (claims)4,204 · 9,720 30-day fills
Patients409
Total drug cost$452,390
Generic share86% of claims

Medicare sources and data years

Education and affiliations

Medical schoolTulane University School of Medicine
Graduation year2015
Medicare specialtyFamily Practice

Medical groups

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

None reported for 2025 or 2024.

Receiving payments does not imply wrongdoing. What Open Payments covers ·original records

Other family medicine physicians in Portland

All 108 family medicine physicians in Portland · All family medicine physicians in Maine